Restricted by the Treaty of Versailles, Germany quietly pursued submarine development in secret during the interwar years. Through covert partnerships and hidden programs, early U-boat designs ...

During a covert Cold War mission, two nuclear-powered submarines unknowingly closed in on each other beneath the surface. The resulting collision produced chaos, damage, and confusion, while both ...

TOPEKA, Kan. (WIBW) - While U.S. ground troops battled on the front lines of the Vietnam War, an elite group of the U.S. Navy worked below the surface in the deep waters of the Pacific Ocean. U.S.